197671137 has 8 divisors (see below), whose sum is σ = 263953536. Its totient is φ = 131584752.

The previous prime is 197671109. The next prime is 197671139. The reversal of 197671137 is 731176791.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 197671137 - 2¹⁰ = 197670113 is a prime.

It is a super-3 number, since 3×197671137³ (a number of 26 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (197671139) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 46633 + ... + 50694.

It is an arithmetic number, because the mean of its divisors is an integer number (32994192).

Almost surely, 2^197671137 is an apocalyptic number.

It is an amenable number.

197671137 is a deficient number, since it is larger than the sum of its proper divisors (66282399).

197671137 is an equidigital number, since it uses as much as digits as its factorization.

197671137 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98007.

The product of its digits is 55566, while the sum is 42.

The square root of 197671137 is about 14059.5567853329. The cubic root of 197671137 is about 582.5248008990.

The spelling of 197671137 in words is "one hundred ninety-seven million, six hundred seventy-one thousand, one hundred thirty-seven".